Step 17- I brevetti
INCLINED GYROSCOPIC HORIZON (1950 US, by Frederick D Braddon & Wrigley Walter) "This invention relates to gyroscopic artificial horizons, sometimes known as gyro-verticals, which are employed not only as visual indicators but also as base lines from which to control the lateral and longitudinal stability of aircraft and of sighting and radar equipment on ships, aircraft or other dirigible craft. Such gyroscopes are usually mounted in substantially neutral equilibrium, or made slightly pen-dulous, and are maintained in their normal positon primarily by gravitationally controlled erecting devices, such as pendulums or liquid level devices which govern a source of power applying a torque substantially normal to the direction of tilt..." RATE OF TURN INTEGRATOR (1951 US, by Paul A Noxon) "The present invention relates to indicating instruments, and more particularly to means for accurately indicating, at all times, the magnetic headi...